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Lasseuguette, Elsa; Gandini, Alessandro; Timpe, Hans-Joachim
Journal of photochemistry and photobiology. A, Chemistry., 09/2005, Letnik: 174, Številka: 3Journal Article
Several furan compounds bearing conjugated trans C C plus carbonyl moieties appended at the C2 position of the heterocycle were synthesized and characterized. Near-UV irradiation in bulk and in concentrated solutions induced their dimerization through a π2 + π2 cycloaddition reaction between an excited and a ground state molecule. In dilute solutions, the excited species underwent predominantly trans– cis isomerization to give the equilibrium mixture of the isomers.
